<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<script type="text/javascript" src="../js/jquery-1.11.3.min.js"></script>
	<body>
		<div class="btn" style="position:absolute;right:0;top:0">请滑过这里，来切换不同的背景颜色</div>
		<div id="box" style="width:1000px;height:400px;background: #f00;">
			
		</div>
		
	</body>
	<script type="text/javascript">

		$('.btn').hover(function(){
			$('#box').toggle(500)
		})
	</script>
</html>


